(Beyond Pesticides, March 3, 2008) In a five-year study of the Chesapeake Bay, the nation???s largest estuary, the U.S. Geological Survey (USGS) found that, ???Synthetic organic pesticides and their degradation products have been widely detected at low levels in the watershed, including emerging contaminants such as pharmaceuticals and hormones.??? The report finds that concentrations of DDT, whil